单相交流电流通入三相异步电动机定子两相绕组，将在气隙产生（）磁场。

单相绕组通入交流电产生的脉振磁场可以分解成两个（）相同而（）相反的（）磁场。

单相异步电动机的工作绕组通以单相交流电源时，气隙中将建立脉振磁场（或称脉动磁场），其可以分解为（）

按照电动机学原理,当(    )的定子三相绕组接通三相交流电源时,就会产生旋转磁场。 

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

单相异步电动机的定子绕组中通入电流时，能产生旋转磁场。

按照电动机学原理，当（）的定子三相绕组接通三相交流电源时，就会产生旋转磁场。

单相异步电动机定子绕组接通交流电源后也会产生旋转磁场。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。